methyl (E)-3-(2,4-dichlorophenoxy)prop-2-enoate

methyl (Z)-3-(2,4-dichlorophenoxy)-2-propenoate

1-甲基-1H-吡咯-3-羧酸甲酯

methyl ester of trans-β-(ethyleneimino)acrylic acid

methyl 3-(aziridin-1-yl)prop-2-enoate